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T PartA Between points A and 3: how much work is done on the rock by the normal force? Express your answer in joules. h v o ? rJ R_eouestnnswer v Part3 Between points A and 3: how much work is done on the rock by gravity? Express your answer in joules. M *v r 0 r W = J R_eouest Answer A small rock with mass 0.24 kg is released from rest at point A, which is at the top edge of a large, hemispherical bowl with radius R = 0.48 m (Figure 1). Assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume that the rock slides rather than rolls. The work done by friction on the rock when it moves from point A to point B at the bottom of the bowl has magnitude 0.22 J. Figure A R - U B